Private vs. Public Autonomous System Numbers (ASN): What’s the Difference?
In the world of internet networking, Autonomous System Numbers (ASNs) play a crucial role in routing data efficiently between different networks. ASNs are unique identifiers assigned to Autonomous Systems (AS)—large networks or groups of IP addresses that operate under a …
Patreon Post: Mikrotik tagging incoming routes with a community
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IPv4 Subnet Mask Cheat Sheet: A Handy Guide
IPv4 Subnet Mask Cheat Sheet CIDR Notation Subnet Mask Total Subnets Hosts per Subnet (usable) /8 255.0.0.0 1 16,777,214 /9 255.128.0.0 2 8,388,606 /10 255.192.0.0 4 4,194,302 /11 255.224.0.0 8 2,097,150 /12 255.240.0.0 16 1,048,574 /13 255.248.0.0 32 524,286 /14 …
What is the Global BGP Routing Table?
The Global BGP Routing Table is a comprehensive database that contains all the IP address prefixes (routes), which are advertised by ASNs, and the associated paths to reach them across the internet.
Setting Up a BGP Peer with Mikrotik RouterOS Version 7
Border Gateway Protocol (BGP) is an essential protocol for internet routing, enabling autonomous systems (AS) to communicate and exchange routing information. Mikrotik RouterOS Version 7 introduced significant enhancements to its BGP implementation, making it more powerful and versatile. This guide …
Understanding Autonomous System Numbers (ASNs) in BGP
A critical component of BGP’s functionality is the Autonomous System Number (ASN). But what exactly is an ASN, and why is it so important?
How Does TCAM Work in Routers?
In a previous post, I asked if TCAM is still needed in modern routers. In this post, I will examine how TCAM works in routers and provide some more insight into TCAM. In a router, TCAM stores and processes rules …
How Route Servers Work on an Internet Exchange Point (IXP)
In the world of Internet connectivity, Internet Exchange Points (IXPs) play a crucial role in facilitating efficient traffic exchange between networks. Within this ecosystem, route servers act as intermediaries to streamline the process of establishing connections, known as peering, between …
Overview of OSPF and BGP Differences and why
Having done consulting for years I saw many instances where BGP, especially ibgp, was used where OSPF would have been a better fit. Sometimes, this was for a specific reason; sometimes, it was just not knowing better. I am from …
Why BGP is the Backbone of the Internet: Understanding the Importance of Border Gateway Protocol
The Internet, as we know it today, is a vast network of interconnected systems that allow seamless communication, data transfer, and access to information. But have you ever wondered how data finds its way across such a sprawling network? This …